Trivia: As Loggia and his henchmen are about to enter the strip club, note the movie marquee in the background with the title "See You Next Wednesday." This fictional movie is director John Landis' first attempted screenplay, and appears somewhere in most of his films. Source: http://en.wikipedia.org/wiki/See_You_Next_Wednesday. (01:32:20)
Trivia: There are brief cameos at the start of the film by Peter Jackson as Bad Santa, who stabs Nicholas, and Garth Jennings as the Crackhead who holds hostages. Later, Cate Blanchett appears as Janine, who is hidden behind a surgical mask, and from whom Nicholas is estranged. And the film's director, Edgar Wright, is seen as the store employee pushing the cart when Nicholas walks towards the manager's office.
Trivia: Right after Mr. Peck the EPA man forces the Ghostbusters to shut off the grid and the energy is released into the sky, an ad for Stay Puft can be seen on a building. (01:09:00)
Trivia: When Kevin is in Buzz's bedroom, he finds in the box a picture of Buzz's girlfriend. This is actually a picture of the art director's son dressed up to look like a girl, because the director, Chris Columbus, thought it would be too harsh to make fun of a girl like that.
Trivia: John Cusack's real-life sister, Joan Cusack, is wearing a neck brace on the bus at the beginning of the film.